Transformers: Cybertron - Season 1 Episode 48 Guardian

Wing Saber hurries to the space bridge in the sky. However, he was not there in time and the space bridge begins to fall apart due to the battle that had just occurred. Lori grieves that she cannot return to her home world. The Autobots who were not able to return to their original dimension because of the collapse of the space bridge attempt to artificially create a space bridge of their own but only fail. Vector Prime then decides that he must act to save the universe and destroy the black hole.